Mechanical structure and application of the XJM-KS60 flotation machine

In order to conform to the trend of using large sized flotation cells,the XJM-KS 60 flotation cell has been developed using simulation scale-up method. The paper presents a detailed introduction to the key technical parameters and the optimum main structural design of the machine,as well as the results of mechanical computation and finite element analysis of the machine’s key components. The result indicates that the flotation machine works with an aeration rate of 0. 85 m³/（ m²·min）,aeration uniformity coefficient of 91%,agitating power of 110 k W and a pulp throughput of 1 500 m³/h,well coming up to the design specifications and relevant trade standards. As evidenced by field application of the first machine at Sima Coal Preparation Plant,under the prereguisite of ensuring an ash of the flotation concentrate of ＜ 9. 5%,there can be seen an increase of yield of concentrate by 36. 69 percentage points,an increase of ash of tailings by 25. 02 percentage points,an increase of Improvement index of flotation by 20. 36 percentage points,and a drastic reduction of power consumption.